کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
745952 894438 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electro-chemical operation of ionic polymer–metal composites
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Electro-chemical operation of ionic polymer–metal composites
چکیده انگلیسی

Currently, there is a major engineering challenge associated with ionic polymer–metal composites (IPMCs) that needs to be resolved before they can be vastly adopted in current and future engineering markets—relaxation of the IPMC actuator under a DC voltage. In this article, we rigorously discuss the potential origin of the relaxation phenomena of IPMCs that can be related to electro-chemically induced surface reactions with electrodes. Our measured voltammograms and deflection data of IPMCs revealed that the relaxation phenomena of the IPMC actuators are primarily caused by the overpotential of the surface electrodes. The overpotential values of ca. +1 V were clearly noted for many IPMC samples. We believe that the relaxation of IPMCs originate from the platinum oxide formation during actuation—a key surface reaction. The IPMC solvated with a typical ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) as a solvent, showed a larger bending, but there was no relaxation during actuation because there was no platinum oxide formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 155, Issue 1, 5 July 2011, Pages 106–113
نویسندگان
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